Write a regression test for [JDK-4820080](https://bugs.openjdk.java.net/browse/JDK-4820080) : RFE: Cannot Change the JSplitPane Divider Color while dragging
Issue(as per bug description): I want to change the color of the JSplitPane divider. I opened the code and found that, the color is hard coded to darkGray while one is dragging the splitDivider. I have an application where the components on SplitPane have black background, So when i drag I can not see the split getting dragged. Can some one fix this, by externelising the SplitDivider color so that it can be changed at run time. Testing: Java 1.4.1 -> Test Failed. $ ./j2sdk1.4.1/bin/java JSplitPaneDragColorTest Metal uses correct drag color false CDE/Motif uses correct drag color false Windows uses correct drag color false Test Failed. Java 1.5.0 -> Test Failed. $ ./jdk1.5.0/bin/java JSplitPaneDragColorTest Metal uses correct drag color true Windows uses correct drag color true Windows Classic uses correct drag color true Test Passed. ------------- Commit messages: - 8282937: Write a regression test for JDK-4820080 Changes: https://git.openjdk.java.net/jdk/pull/7803/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7803&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8282937 Stats: 194 lines in 1 file changed: 194 ins; 0 del; 0 mod Patch: https://git.openjdk.java.net/jdk/pull/7803.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/7803/head:pull/7803 PR: https://git.openjdk.java.net/jdk/pull/7803
